Steam-damper regulator



(No Model.)

G. M. GITHENS.

STEAM DAMPER REGULATOR. No. 285,478. Patented Sept.25,1883.-

UNITED STATES enonen M. GITHENS, or BROOKLYN, NEW YORK.

PATENT UFFIGE.

STEAM-DAM PER REGULATOR.

SPECIFICATION forming part of Letters Patent No. 285,478, dated September 25, 1883. Application filed January 29, 1883. (No model.)

To aZZ whom it may concern: I Be it known that I, GEORGE M. GrrHENs, of Brooklyn, E. D., in the county of Kings and State of New York, have invented an Improvement in Steam-Damper Regulators, of which the following is a specification.

This device is an improvement upon that for which Letters Patent N o. 270, 302 have been granted to me January 9, 1883. I make provision for holding the pressure-cylinder vertically, and for carrying off any water that may adhere to the interior surface of the said cylinder in such a manner that the outer surface of the cylinder may not become discolored or rusty.

In the drawings, Figure 1 is a vertical section of the apparatus, and Fig. 2 is a side View of the same. I

The bracket or support a is provided with a plate, I), that is bolted to a wall-partition or other support. There is an opening through it, andthe upper part of this opening is made as a concave to receive the spherical segment d at the base of the pressure-cylinder f. The piston-rod 9 passes up through the gland It to the piston 70 within the cylinder f, and the weights Z are upon this rod, and serve to draw down the piston against the action of the pressure.

The presser-cylinder is slightly smaller at the upper end than it is at the lower end, for the purposes set forth in my said patent, and

the piston is a cup, leather or elastic, so as to remain tight as it is moved by the pressure of the steam in the boiler acting upon the water or other liquid contained in the pressure-cylinder. The weights Z may be movable or variable, so as to suit differences of pressure; or a spring might be substituted for the weights, my invention being available in damper-regulators of various construction.

I make the. pistonrod g tubular, and the rod that passes through the weight is also tubular. These may be in one piece 5 but I prefer to make them of separate tubes, screwed into the coupling-sleeve 0.. The object in making the piston-rod tubular is to carry off any water that may accumulate above the piston from leakage, or from the particles of water adhering to the interior of the pressure-cylinder as the piston descends. This water, if it is not weights.

cylinder, a tubular piston-rod open carried off through the tubular piston-rod, accumulates and is ejected through the venthole at the top of the pressurecylinder and discolors the outside of the cylinder and the By the use of the tubular rods the water is delivered at the bottom, and may be caught in a movable drip-cup.

The packing-gland h, through which the piston-rod passes, is not always perfectly tight. I therefore apply a cup, 1), that catches any drip, and there is a hole at z from tlr bottom of this cup into the tubular rod, so hat the leakage is delivered at the lower end of the weights.

In order to clamp the parts in position after they have been placed vertically, I prefer and use the nut s, that is screwed upon the neck (1 of the globular segment (2 and rests against a washer, (1 upon the convex bearing at the bottom of the bracket a. This clamp does not require to be moved, because when the bracket has been firmly fixed the parts are placed vertically and so remain.

In order to supply the steam, or the water under the steam-pressure, into the cylinder f, I make a connection to one side of the bracket a, as seen at i, and this connection is to be in the form of a pipe with a cock in it, the pipe the boiler. The port 3 connects withaperipheral groove, 5L, around the globular segment leading to either the steam or water space of d, and from this there are one or more passages, 5, into the pressure-cylinder f.

I prefer to employ the blowoff cook a, with a port, 6, opening into .the groove 4, so that any sediment may be blown out of the cylinder or passages leading to it. t

The cord oriwire leading ofi' to the damper in the chimney may be connected to either the top or the bottom of the central vertical pistonrod, and the mode of connection, beingiamiliar to engineers, and illustrated in my afoi'esaid patent, does not require further description. By this construction the da1nperregulator can be taken apart for cleaning or repairs without disturbing the connection to the boiler.

I claim as my invention- 1. The combination, in a damperregulator, of a vertical cylinder, a piston within such at the upper end, a gland at the lower end of the cylinder through which such rod passes, weights or springs applied to the lower end of the piston-rod, and a connection to the damper, sub stantially as set forth.

2. The combination, with the vertical cylinder, piston, and piston-rod and weights, of a tubular rod passing through the weight, a cup surrounding the same, and an opening into said tubular rod, whereby any leakage from the packing-gland of the piston-rod is delivered below the weight, substantially as set forth.

3. The combination, with the vertical cylinder, piston, and weight, of a vertical tubular rod passing through the weight and the tubular piston-rod, and the cup surrounding such tubular rod, whereby the water escaping at the piston and the packing-gland is delivered below the weight, substantially as set forth.

EZSSAVQ GEO. M. GITHENS.

lVitnesses:

G-Eo. T. PINcKNnY, \VILLIAM G. Morr. 

